Hello Guest it is June 17, 2021, 05:30:38 AM

Author Topic: Problem in a curve drawings  (Read 2109 times)

0 Members and 1 Guest are viewing this topic.

Problem in a curve drawings
« on: October 20, 2009, 06:13:41 AM »
Dear all,

I have a CNC machine with two Siemens Stepper Motors connected by two STEPDRIVE to the parallel port of a PC..
I am using Mach3, and Sheetcam (for converting from Autocad to G-code)..

When i have a straight lines drawing with any orientation, the motors go perfectly, even when increases the feed rate (Frequency of pulses)..
But when a curve or a circle is wanted to be drawn, the motors get stuck if i increases the feed rate little more !!!
Is it the code???? or What??

Any help plz??


Offline RICH

  • *
  •  7,419 7,419
    • View Profile
Re: Problem in a curve drawings
« Reply #1 on: October 20, 2009, 06:46:46 AM »
I am guessing that you have your motors set at the max velocity that they will go and they are both equal in steps per unit.
Lower your velocity to, say 70% of max, and see what happens.